Can I Install Windows 7 over Windows 8?

Wow. The OP asked a simple question which I have kept as my subject title. I clicked on this to see if I could find an answer and all I get is all this bull crap about which system is better. Windows 8 sucks for desktops, pure and simple. Now, can anyone tell me how to install Windows 7 over this crap without getting into an argument about which is better?